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HP Prime Graphing Calculator User Manual

Page 412

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406

Functions and commands

pole

Given a circle and a line, returns the point for which the line

is polar with respect to the circle.

pole(Crcle,Line)

Example:

pole(circle(0, 1), line(1+i, 2)) returns
point(1/2,1/2)

POLYCOEF

Returns the coefficients of a polynomial with roots given in the

vector or list argument.

POLYCOEF(Vector) or POLYCOEF(List)

Example:

POLYCOEF({-1, 1})

returns

{1, 0, -1}

POLYEVAL

Given a vector or list of coefficients and a value, evaluates the

polynomial given by those coefficients at the given value.

POLYEVAL(Vector, Value) or POLYEVAL(List,
Value)

Example:

POLYEVAL({1,0,-1},3)

returns

8

polygon

Draws the polygon whose vertices are elements in a list.

polygon(Point1, Point2, …, Pointn)

Example:

polygon(GA,GB,GD) draws ΔABD

polygonplot

Used in the Geometry app Symbolic view. Given an n × m

matrix, draws and connects the points (xk, yk), where xk is the

element in row k and column 1, and yk is the element in row

k and column j (with j fixed for k=1 to n rows). Thus, each

column pairing generates its own figure, resulting in m–1

figures.

polygonplot(Matrix)

Example:

polygonplot

draws two figures, each with three

points connected by segments.

1 2 3
2 0 1

1

2 3